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<html>
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<head>
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<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>
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Performance Monitoring</title>
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<meta content="DocBook XSL Stylesheets V1.60.1" name="generator">
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<link rel="home" href="index.html" title="Antelope Users Guide">
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<link rel="up" href="bk03.html" title="Additional Ant Tasks">
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<link rel="previous" href="bk03ch16.html" title="Chapter&nbsp;16.&nbsp;Call Task">
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<link rel="next" href="bk03ch18.html" title="Chapter&nbsp;18.&nbsp;Feedback">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<div class="chapter" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title">
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<a name="performance">
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</a>
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Performance Monitoring</h2>
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</div>
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</div>
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<div>
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</div>
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</div>
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<p>
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The "Performance Monitor" is
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a special Ant listener than can keep track of the amount of time that each target
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and task takes to execute. At the end of the build, these times will be sorted
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from fastest to slowest and displayed following the build output. This can be
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useful to pinpoint slow and/or inefficient spots in the build process and
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identify those areas that could benefit from optimization.
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</p>
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<p>
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The performance listener can be used by passing a parameter
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to the command line for Ant:
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</p>
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<p>
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<table border="0" bgcolor="#E0E0E0">
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<tr>
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<td>
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<pre class="programlisting">
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    ant -listener net.sf.antcontrib.perf.AntPerformanceListener target
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</pre>
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</td>
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</tr>
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</table>
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</p>
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<p>
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Following is an example of the results from using the listener. The result format is projectname.targetname for targets and projectname.targetname.taskname for tasks. All times are shown to the nearest millisecond.
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<table border="0" bgcolor="#E0E0E0">
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<tr>
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<td>
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<pre class="programlisting">
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[danson@blackdog antelope]$ ant -listener net.sf.antcontrib.perf.AntPerformanceListener dist
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Buildfile: build.xml
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init:
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clean:
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   [delete] Deleting 170 files from /home/danson/apps/antelope/build
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compile:
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    [javac] Compiling 61 source files to /home/danson/apps/antelope/build
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all:
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-build_number:
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prep_files:
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   [delete] Deleting 3 files from /home/danson/apps/antelope/config
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     [copy] Copying 3 files to /home/danson/apps/antelope/config
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combined:
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     [echo] basedir = /home/danson/apps/antelope
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      [jar] Building jar: /home/danson/apps/antelope/Antelope_1.208.jar
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dist:
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   [delete] Deleting 4 files from /home/danson/apps/antelope/dist
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      [zip] Building zip: /home/danson/apps/antelope/dist/Antelope_1.208.zip
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     [echo] Created zip file.
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-zip_docs:
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      [zip] Building zip: /home/danson/apps/antelope/dist/Antelope_docs_1.208.zip
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     [echo] Zipped docs to Antelope_docs_1.208.zip.
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-zip_tasks:
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      [jar] Building jar: /tmp/Antelope_tasks_1.208.jar
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      [zip] Building zip: /home/danson/apps/antelope/dist/Antelope_tasks_1.208.zip
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   [delete] Deleting: /tmp/Antelope_tasks_1.208.jar
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     [echo] Zipped tasks to Antelope_tasks_1.208.zip.
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     [copy] Copying 1 file to /home/danson/apps/antelope/dist
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BUILD SUCCESSFUL
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Total time: 8 seconds
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-------------- Target Results -----------------------
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Antelope.all: 0.000 sec
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Antelope.init: 0.011 sec
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Antelope.-build_number: 0.014 sec
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Antelope.clean: 0.233 sec
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Antelope.-zip_tasks: 0.297 sec
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Antelope.prep_files: 0.311 sec
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Antelope.-zip_docs: 0.546 sec
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Antelope.combined: 1.290 sec
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Antelope.compile: 1.724 sec
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Antelope.dist: 2.162 sec
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-------------- Task Results -----------------------
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Antelope.init.mkdir: 0.000 sec
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Antelope.init.mkdir: 0.001 sec
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Antelope.dist.echo: 0.002 sec
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Antelope.prep_files.delete: 0.004 sec
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Antelope.combined.echo: 0.005 sec
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Antelope.dist.delete: 0.006 sec
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Antelope.-zip_tasks.echo: 0.007 sec
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Antelope.dist.copy: 0.011 sec
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Antelope.-build_number.buildnumber: 0.014 sec
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Antelope.compile.copy: 0.016 sec
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Antelope.prep_files.copy: 0.020 sec
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Antelope.prep_files.replace: 0.071 sec
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Antelope.-zip_tasks.zip: 0.122 sec
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Antelope.-zip_tasks.jar: 0.161 sec
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Antelope.prep_files.replace: 0.216 sec
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Antelope.clean.delete: 0.233 sec
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Antelope.dist.antcall: 0.421 sec
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Antelope.-zip_docs.zip: 0.540 sec
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Antelope.dist.antcall: 0.685 sec
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Antelope.dist.zip: 1.036 sec
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Antelope.combined.jar: 1.284 sec
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Antelope.compile.javac: 1.708 sec
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-------------- Totals -----------------------
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Start time: Thu, 5 Dec 2002 17:18:30
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Stop time: Thu, 5 Dec 2002 17:18:39
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Total time: 8.476 sec
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</pre>
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</td>
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</tr>
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</table>
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</p>
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</div>
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    <hr>
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    <p align="center">Copyright &copy; 2003 Ant-Contrib Project. All
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    rights Reserved.</p>
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</body>
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</html>